Mixed-Phase Seismic Wavelet Extraction and Its Application
详细信息
- 责任者：Cui Qinghui (Geophysical Research Institute ; Shengli Oilfield ; SINOPEC ; Dongying 257022 ; China) ; Kui Yongjun
- 刊名：Geophysical Prospecting for Petroleum
- 出版年：2011
- 卷期：50(5)
- 关键词：地震子波 ; seismic wavelets
- 页码：p.481-486
- 图表：8 illus., 11 refs.
- 分类号：1600
- issnNo：ISSN1000-1441
- isbnNo：CN32-1284/TE
摘要
Seismic wavelet plays an important role in seismic forward modeling and inversion. At present, wavelet extraction is mainly based on the assumption that wavelet is min-phase. However, actual seismic wavelet often has mixed-phase. In order to extract the seismic wavelet with actual phase, starting from the statistical characteristic of seismic signals by using the bispectrum of high-order statistics, the actual phase of seismic wavelet was extracted from reflection record to reconstruct seismic wavelet. By modeling testing and actual data processing, the method is proved to be effective and practical.